Trait analyses of the Luria-Nebraska Intellectual Processes, Motor Functions, and Memory Scales. |
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Authors: | S N Macciocchi P C Fowler J D Ranseen |
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Affiliation: | Department of Physical Medicine and Rehabiliatation, University of Virginia Health Sciences Center, Charlottesville, 22908, USA. |
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Abstract: | Trait analyses of the Luria-Nebraska's Intellectual Processes, Motor Functions, and Memory Scales were performed using multitrait-multimethod procedures and confirmatory factor analysis. Three measures each of intellectual, motor, and memory functions were administered to 161 neuropsychiatric patients. Intellectual scales (viz., Luria-Nebraska and WAIS-R) were found to have convincing discriminant properties, but motor and memory measures demonstrated visibly less such robustness. Confirmatory factor analyses supported a three-factor model of the 9 x 9 matrix, in which each of the three Luria-Nebraska scales serves as a marker for the factors. Issues related to the neuropsychological constructs, test construction, and construct validity of measurement procedures employed in clinical neuropsychology are discussed. |
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